Air-feeding device.



No. 815,473. PATENTEDMAR. 2o, 1906.-

W. BASSE.

AIR PBEDING DEVICE. APPLIoATIoN FILED SEPT. za. 1905.

MQW

'UNITED sirnrns PATENT OFFICE; u

. WILLIAM vsAssn, or CHICAGO, ILLINoIs. y

vAla-FEEplNefilvlola.

speciatio f Legters Patent.

Patented March 2.0, 1906.`

' Y Applicationaasepamter23,1905. serinrazveneaj To all whom/'it Wea/y concern): n

Beit known that L'WILLIAM SAssE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois,

haveinvented certain new and useful Im provernents in AirFeeding Devices, of which thefollowing is a specification.

My present invention relates lto improve# ments inl air-feeding devices. to be used in" stoves, furnaces', and the like; and the objects thereof are substantially the same as those set forth in Letters Patent No. 71 1,681, issued tome on the 21stday of October, '19024 vnamelypto provide an air-feeding vdevice which shall be simple and inexpensive in construction, strong,durable, and easily applied toa stove or furnace and by means of which "more perfect combustion will be obtained,

y kbest effects in generating heat.

therebyl economizing in the amount offuel,l

used. A further object of the invention is to so lconstruct the device that itV may be' placed' within the stove or furnace in. such a manner that a space for'the circulation or passage'of z 5 airf'will be aorded entirely varound the fireboX, thus vprovidingnmeans for the admission of an augmented supply of fresh air to the upper portion of the ire chamber or boX, where by means of certain parts of my invention it.v

will be caused to commingle withv the gases and carbonaceous matterevolved from lthe burning fuel before they pass into the flue or chimney, or, in other words, to eHect their combustion at a point with respect to the produce the` stove or furnace whereit will A still furtherv object vof the invention is to Y' so construct and arrange the parts that currents of air of a lower temperature than the products of combustionv may be supplied thereto so as to commingle therewith and by vmeans of such commingling create an infiam-v mable gas to be consumed within the furnace v and vin its Yconsumpti on destroy the offensive ases soot and heav smoke.. g r z Other objects and advantagesof the invene tion will `be disclosed in the subj oined descrip-S tion and explanation.

In order to enable others in whichi Figure lisa vertical sectionalview taken on line'l 1 of Fig'. 2'througha stove, showing -an air-feeding device embodying my 'inven-` skilled in thel art to which my invention pertains to make ,andv use the same,`I will now proceed to describe` it, referringV to the accompanying drawings,

tionlocated therein and ready for operati on. Fig. 2 is a plan view of the upper portion of the device, showing a part of the upper plates thereof V'broken awayvto disclose the concentric vrings or bands on the lower plate and the openings therein for the passage of smoke.

n Fig. 3 is a plan view of the lower plate of the feeding device and Fig. 4 is ya view, partly in section and artly in elevation, taken on line 4 4 of Fig. 3 ooking in the direction indicated by the arrows, but showing the upper and inf `termediate plates in position on the lower l i plate. y Like numerals of reference refer to corresponding parts throughout the different views of the drawings.

4 The reference-numeral 10 designates the outer wall or jacket of a stove,vwhich in the present instance is shown as bein made of sheet metal and cylindrical in orm, but

which may be constructedl ofl any suitable moval of ashes throuigh a doorway 15, the

door of which is pre erablyv provided with 'openings 16 for the passage 'of air, which openings may be closed or partially closed by means of a sliding plate 17 on the door. Just above the grate 12 the wall or jacket of the stove is provided with a series of openings 18 for the admission of air7 which openings are `arranged at suitable distances apart in the wall of the stove or furnace.

g At a vsuitable distance above the girate thewall or acket 1() is provided withv a doorway 19, through which fuel maybe passed to the fire-box of the stove orfurnace and which doorway may IOO b`e closed by means of a door-20, having open# ings 2l for the passage of air, which openings may be closedby means of a-sliding plate' 22 when it isdeSiredjto vshut off the air atv said point. Atajsuitable distance above the door,

horizonta line around the wall and may be closed by means of sliding plates 24, which are supported on horizontal ribs or cleats 25,

secured to the outer surface of the stove'or furnacewall.

'way l9fthewall 10 is provided with another .t series ofV o enngs 28,Wl 1ich'are arranged -in a IIO ' mitted through the openings 18 may pass upwardly. The upper portion of the drum or fire-box 26 is formed with an opening 28 to register with the doorway 19, so that the coal or fuel may be passed through said doorway and opening into the lined drum 26 and to rest on the grate. As shown in Fig. 1', the upper end of the drum 26 is located a slight distance above the doorway 19 in the wall or jacket of the stove and has horizontally f mounted on its upper end a plate or disk 29,

which is provided with a central opening 30, around which is formed or located an annular flange 31, which extends upwardly a short distance. The plate 29 is provided at its outer periphery with an upturned annular flange 32 to the inner surface of vwhich the lower portion of a perforated band 33 is secured. About midway between the inner fiange 31 and outer flange 32 on the plate 29 said plate is provided with a series of elongated openings 34, each of whichis surrounded by a flange 35, which extends upwardly, so as to be about level with the upper end of the flange 31 around the central opening in said plate. Located on the outer surfaces of the flanges 35 and surrounding the same is a perforated circular band 36, and located so as to rest against the outer surface of the inner portions of the flanges 35 is another perforated circular band 37, which, as well as the bands 33 and 36, extend upwardly some distance above the upper ends of the flanges 31 and 35 and terminate at a uniform height. By reference to Fig. 1 it will be seen that the plate 29 rests on the top of the drum 26 and lining therefor, but projects a slight distance only from said drum, while the intermediate plate 38, which rests on the upper edges of the bands 33, 36, and 37, extends to the inner surface of. the wall 10 ust below the openings 23 therein, thus closing the airspace between the wall 10 and drum 26 of the stove.

This plate 38 has a central opening 39, which is surrounded by a flange 40, which extends upwardly a slight distance. Located on the upper surface of the plate 38 and usually in alinement with the bands 33, 36, and 37 thereon, are perforated bands 41, 42, and 43,

shown. The top plate 44 extends to the inner surface of the wall or acket 10, thus forming a vertically-closed chamber between the plates 38 and 44, to which the openings 23 in the wall of the stove lead.

` W'hile l have shown the bottom plate 29 provided with four of the openings 34 and have also illustrated three circular bands located on the plate 29 and the same number on the intermediate plate 38` yet it is obvious that l may employ any number of the openings 34 or a greater or less number of the said bands and that the same may be circular or of other shape when other than a cylindrical stove or furnace is used` From the foregoing and by reference to the drawings, it will be seen and clearly understood that as the smoke or unconsumed particles of carbon rises from the fire on the grate within the inner drum it will pass through the openings 30 and 34 in the lower plate and will be slightly retarded, cspecially that portion which passes through the openings 34, by the intermediate plate 38 and the fiange 37, in its passage from bctween said plates and through the opening 39 in the intermediate plate, will be thoroughly mixed with the air admitted through the openings 18 in the jacket 10, as well as that admitted through the openings 21 in the door of said jacket, thus affording a new and plentiful supply of oxygen, thereby causing more perfect combustion. As the smoke, gases, and unconsumed particles of carbon pass through the openings 39 and 45 in the plates 38 and 44, respectively, a further quantity of air admitted through the openings 23 and passing through the perforations of the bands 41, 42, and 43, will be caused to mingle therewith, thus further accelerating combustion and rendering it more perfect. By placing the drum 26 at a distance from the jacket 10, as shown and above described, it is apparent that the air admitted through the openings 18 will become somewhat heated and will mingle with the carbonaceous gases in the chambers formed by the bands or partitions below the intermediate plate 38, and that as the gases and unconsumed particles pass up through the opening 39 in the intermediate plate a supply of air at a lower temperature than the gases and said particles will be furnished through the openings 23 to commingle therewith, and thereby affording a fresh supply of oxygen.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In an air-feeding device for stoves and the like, the combination of a jacket or wall having in its lower portion openings for the admission of air, of a grate horizontally mounted in the lower portion of the jacket or wall, a drum located within the jacket at a distance therefrom and resting at its lower lOO ' end on'said grate, a plate located'on the top of the drum and having a central opening and a number of openings between said central opening and the outer edge of the plate,

upwardly-extending flanges around the in.

termediate openings, a series of bands located on the upper surface of said plateand Ivo ' yof the intermediate plate and havin-gfperfora-` having openings for the passa e of air, an intermediate plate located on t e top of said bands and provided with a central opening, a series of bands located on the upper surface tions for the passage of'air, and a top plate located on the top of the bands on the intermediate plate and havinga central opening, substantially as described.

2. In anair-feeding device for stoves and the like, the combinationwith an inner drum,

of a jacket. surrounding the same at a distance therefrom and rovided in its upper and lower portions Wit lopenings for the admission of aina plate located on the upper V end of the. drum and having a central opening y and a vnumber of openings provided with upwardly-extending flanges located between said central opening and the edge of the plate, a series of perforated bands located on the upper surface of said plate at distances apart, an intermediate plate located o n the upper edge of said band and having a central opening, a series yof perforated bands located on the upper surface ofthe intermediate plate at distances apart and a top plate located on the upper edge of said bands and having a central opening, the intermediate'plate and top plate being extended tothe inner surface of the jacket and embracingthe openings in the upper portion thereof, substantially as 'de- I scribed.

/ p WILLIAM SASSE.l

Witnesses:

M. A. NYMAN,

CHAs. O.A TILLMAN. 

